Question

Teacher can you explain me compendo and divodendo​

Answer 1

Answer:

If four quantities are in ratio, such as p : q :: r : s

Componendo: (p+q)/q=(r+s)/s

Dividendo: (p-q)/p=(r-s)/s

Step-by-step explanation:

In componendo you have to add the first two ratios and then divide by the second ratio. In dividendo you have to subtract the two ratios and divide by the second ratio.